package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;

import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 用户登录
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        //获取手机号
        String phone = user.getPhone();
        //判断手机号是否为空
        if(StringUtils.isNotEmpty(phone)){
            //生成随机四位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}",code);
            //使用阿里云提供的短信服务API完成发送短信
            //SMSUtils.sendMessage("瑞吉外卖","",phone,code);
            //需要将生成的验证码保存到Session
            //session.setAttribute(phone,code);
            //需要将生成的验证码保存到Redis,设置过期时间
            redisTemplate.opsForValue().set(phone, code, 5, TimeUnit.MINUTES);
            return R.success("手机短信验证码发送成功");
        }
        return R.error("短信发送失败");
    }

    /**
     * 移动端用户登录
     * @param map
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session){
        log.info(map.toString());
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        //从session中获取保存的验证码
        //String stringcode = session.getAttribute(phone).toString();
        //从Redis中获取缓存的验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);
        //进行验证码比对，（页面提交的验证码和session中保存到额验证码比对）
        if(codeInSession!=null&&codeInSession.equals(code)){
            //如果不为空并且比对成功，则登录成功
            //判断此手机号是否是新用户，不是新用户则保存到数据库
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            //添加条件
            queryWrapper.eq(User::getPhone,phone);
            //调用方法查询
            User user = userService.getOne(queryWrapper);
            //判断是否为空
            if(user == null){
                user= new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());
            //从Redis中删除缓存的验证码
            redisTemplate.delete(phone);
            return R.success(user);

        }
        return R.error("短信发送失败");
    }


    /**
     * 移动端用户登录退出
     * @param request
     * @return
     */
    @PostMapping("/{loginout}")
    public R<String> loginout(HttpServletRequest request){
        //清空session中保存的当前登录员工的数据
        request.getSession().removeAttribute("user");
        return R.success("退出成功");
    }
}
